o:1338 Uticaji polnih razlika i dijete obogaćene polifenolima na stres izazvan akutnim fizičkim opterećenjem The Influences of gender differences and polyphenolenriched diets on stress caused by acute physical activity : doctoral dissertation sr SAŽETAK Uvod: Sportisti bez obzira na vrstu sporta, posebno profesionalni, kako bi optimizovali svoje fizičke performanse uz adekvatne treninge moraju da imaju i adekvatnu ishranu. Trenutno u fokusu naučnih istraživanja je suplemetacija različitim aktivnim jedinjenjima izolovanim iz biljaka. Budući da su blagotvorni efekti primene polifenola na organizam već istraživani, pokazano je da je glavni mehanizam ovog delovanja inhibicija oksidacionog stresa. Cilj: Uzimajući u obzir da su sportisti u posebnom riziku za nastanak oksidacionoh stresa usled velikih fizičkih napora osnovni cilj ove studije bio je upravo da ispita na koji način tromesečna primena soka od aronije (bogatog polifenolima) utiče na oksidacioni stres, telesnu kompoziciju, osnovne biohemijske parametre i hormonski status. Dodatan cilj ovog istraživanja bio je da se utvrdi da li su ovi efeketi polno zavisni. Metode: U istraživanju je učestvovalo 40 profesionalnih sportista, podeljenih u 4 grupe (n=10), postojale su dve kontrolne (oba pola) i dve eksperimentalne grupe (oba pola). Ispitanici u eksperimentalnim grupama su tokom tri meseca koristili per os koncentrovani sok od aronije, dok su ostali koristili placebo. Na početku i kraju eksperimentalnog protokola sprovedena su sva merenja od interesa (telesna kompozicija, funkcionalna ispitivanja, analiza masnokiselinskog sastava plazme, redoks i hormonski status, krvna slika). Rezultati: Tromesečna konzumacija koncentrovanog soka od aronije kod sportista muškog pola unapredila je telesnu kompoziciju, krvnu sliku, povećala vrednosti relativne i apsolutne potrošnje kiseonika i regulisala redoks i lipidni status. Sa druge strane, efekti u grupi sportistkinja su bili dosta blaži. Tromesečna konzumacija koncentrovanog soka od aronije kod sportista ženskog pola je u najvećoj meri uticala na krvnu sliku i redoks status. Introduction: Athletes regardless of the type of sport, especially professional ones, in order to optimize their physical performance, in addition to adequate training, they must also have adequate nutrition. Currently, the focus of scientific research is the supplementation with various active compounds isolated from plants. Since the beneficial effects of polyphenols on the body have already been investigated, it has been shown that the main mechanism of this action is the inhibition of oxidative stress. Objective: Considering that athletes are at special risk for oxidative stress due to great physical effort, the main goal of this study was to examine how quarterly application of chokeberry juice (rich in polyphenols) affects oxidative stress, body composition, basic biochemical parameters and hormonal status. An additional goal of this study was to determine whether these effects were gender-dependent. Methods: The study involved 40 professional athletes, divided into 4 groups (n = 10), there were two control (both gender) and two experimental groups (both gender). Subjects in the experimental groups used per os concentrated chokeberry juice for three months, while the others used placebo. At the beginning and end of the experimental protocol, all measurements of interest were performed (body composition, functional tests, analysis of plasma fatty acid composition, redox and hormonal status, blood count). Results: Three-month consumption of concentrated chokeberry juice in male athletes improved body composition, blood count, increased values of relative and absolute oxygen consumption and regulated redox and lipid status. On the other hand, the effects in the group of athletes were much milder. Three-month consumption of concentrated chokeberry juice in female athletes had the greatest impact on blood counts and redox status. ID=35330313 ; D-3413 91552101 8025 91552100 35330313 2021-03-30T17:53:07.053Z 45 no 46 mentor Nikola, 1974-, 11290983 Čikiriz 2020 63 mentor Vladimir, 1971-, 13564775 Jakovljević 2020 63 predsednik komisije Ivan, 1985-, 14277991 Srejović 2020 63 član komisije Zoran, 1958-, 3219303 Hajduković 2020 63 član komisije Vesela, 1956-, 13591911 Radonjić 2020 [139] listova 2414520 http://phaidrabg.bg.ac.rs/o:1338 no yes 2 2021-03-30T17:53:07.320Z 70 polifenoli, polne razlike, akutno fizičko opterećenje, telesnisastav, oksidacioni stres polyphenols, sex differences, acute physical activity, body composition, oxidativestress 613.2:[796.012:612(043.3)615.322:577.1(043.3) 1738 34A05 2020